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Vinson CC, Mota APZ, Porto BN, Oliveira TN, Sampaio I, Lacerda AL, Danchin EGJ, Guimaraes PM, Williams TCR, Brasileiro ACM. Characterization of raffinose metabolism genes uncovers a wild Arachis galactinol synthase conferring tolerance to abiotic stresses. Sci Rep 2020; 10:15258. [PMID: 32943670 PMCID: PMC7498584 DOI: 10.1038/s41598-020-72191-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 07/31/2020] [Indexed: 12/31/2022] Open
Abstract
Raffinose family oligosaccharides (RFOs) are implicated in plant regulatory mechanisms of abiotic stresses tolerance and, despite their antinutritional proprieties in grain legumes, little information is available about the enzymes involved in RFO metabolism in Fabaceae species. In the present study, the systematic survey of legume proteins belonging to five key enzymes involved in the metabolism of RFOs (galactinol synthase, raffinose synthase, stachyose synthase, alpha-galactosidase, and beta-fructofuranosidase) identified 28 coding-genes in Arachis duranensis and 31 in A. ipaënsis. Their phylogenetic relationships, gene structures, protein domains, and chromosome distribution patterns were also determined. Based on the expression profiling of these genes under water deficit treatments, a galactinol synthase candidate gene (AdGolS3) was identified in A. duranensis. Transgenic Arabidopsis plants overexpressing AdGolS3 exhibited increased levels of raffinose and reduced stress symptoms under drought, osmotic, and salt stresses. Metabolite and expression profiling suggested that AdGolS3 overexpression was associated with fewer metabolic perturbations under drought stress, together with better protection against oxidative damage. Overall, this study enabled the identification of a promising GolS candidate gene for metabolic engineering of sugars to improve abiotic stress tolerance in crops, whilst also contributing to the understanding of RFO metabolism in legume species.
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Affiliation(s)
- Christina C Vinson
- EMBRAPA Recursos Genéticos e Biotecnologia. Parque Estação Biológica, Final W5 Norte, Brasília, DF, CP 02372, Brazil
- Departamento de Botânica, Universidade de Brasília, Campus Darcy Ribeiro, Brasília, DF, Brazil
| | - Ana P Z Mota
- EMBRAPA Recursos Genéticos e Biotecnologia. Parque Estação Biológica, Final W5 Norte, Brasília, DF, CP 02372, Brazil
| | - Brenda N Porto
- EMBRAPA Recursos Genéticos e Biotecnologia. Parque Estação Biológica, Final W5 Norte, Brasília, DF, CP 02372, Brazil
| | - Thais N Oliveira
- EMBRAPA Recursos Genéticos e Biotecnologia. Parque Estação Biológica, Final W5 Norte, Brasília, DF, CP 02372, Brazil
| | - Iracyara Sampaio
- EMBRAPA Recursos Genéticos e Biotecnologia. Parque Estação Biológica, Final W5 Norte, Brasília, DF, CP 02372, Brazil
- Departamento de Botânica, Universidade de Brasília, Campus Darcy Ribeiro, Brasília, DF, Brazil
| | - Ana L Lacerda
- EMBRAPA Recursos Genéticos e Biotecnologia. Parque Estação Biológica, Final W5 Norte, Brasília, DF, CP 02372, Brazil
| | | | - Patricia M Guimaraes
- EMBRAPA Recursos Genéticos e Biotecnologia. Parque Estação Biológica, Final W5 Norte, Brasília, DF, CP 02372, Brazil
| | - Thomas C R Williams
- Departamento de Botânica, Universidade de Brasília, Campus Darcy Ribeiro, Brasília, DF, Brazil
| | - Ana C M Brasileiro
- EMBRAPA Recursos Genéticos e Biotecnologia. Parque Estação Biológica, Final W5 Norte, Brasília, DF, CP 02372, Brazil.
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Abstract
Serum plasma total cholesterol levels were measured in 85 male or female outpatients with panic disorder (PD; N=41), generalized anxiety disorder (GAD; N=23) and major depression (MD; N=21) according to DSM-IV criteria. All the patients had a mean cholesterol level within the normal range; males (N=22) and females (N=63) had approximately the same serum cholesterol levels (p >.05). No significant differences in cholesterol levels emerged between PD, GAD and MD patient groups. Both female PD and female GAD subjects had a mean cholesterol level similar to their male counterparts (p>. 05). It is concluded that both Hayward and colleagues and Bajwa et al. findings could not be replicated by our study.
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Affiliation(s)
- A L Lacerda
- Department of Psychiatry, State University of Campinas, Brazil.
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de Lime OG, Coêlho JS, d' Albuquerque IL, de Mello JF, Martins DG, Lacerda AL, de Moraes e Souza MA. [Antimicrobial substances from higher plants. XXXV. Antimicrobial or antineoplastic activity of lawsona (2-hydroxy-1,4-naphthoquinone) in comparison with lapachol (2-hydroxy-3-(-3-methyl-2-butanyl)-1,4-naphthoquinone]. Rev Inst Antibiot (Recife) 1971; 11:21-6. [PMID: 5161607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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de Santana CF, Pinto KDV, Moreira LC, Lacerda AL. [Action of swine kidney L-glutaminase on Ehrlich carcinoma]. Rev Inst Antibiot (Recife) 1968; 8:105-7. [PMID: 5761007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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